Experimental Investigation on Heat Transfer Performance in an Underground Dam Tunnel of Hydropower Station

Yi Rong Dang; An Gui Li; Hai Guo Yin

doi:10.4028/www.scientific.net/AMR.374-377.494

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 374-377Experimental Investigation on Heat Transfer...

Experimental Investigation on Heat Transfer Performance in an Underground Dam Tunnel of Hydropower Station

Abstract:

This paper presents an energy efficient ventilation method—dam tunnel air handling for hydropower station ventilation. The heat transfer characteristic between supply air and the dam tunnel is studied by model experiment. Supply air velocity, air temperature and dam tunnel surface roughness are chosen as the mainly influencing factors, the air temperature distribution along airflow direction are measured and analyzed in detail. The results show that the heat transfer performance in dam tunnel is improved as the increased of supply air temperature and the dam tunnel surface roughness, or maintained the supply air velocity at a lower level. This experimental study and its results are helpful to develop alternative and efficient systems for hydropower station ventilation.

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Periodical:

Advanced Materials Research (Volumes 374-377)

Pages:

494-497

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.374-377.494

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Online since:

October 2011

Authors:

Yi Rong Dang, An Gui Li, Hai Guo Yin

Keywords:

Dam Tunnel, Heat Transfer, Hydropower Station, Ventilation Design

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